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Cu K-edge XAFS in CdTe before and after treatment with CdCl2

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Abstract

We have used the fine structure in the Cu K-edge x-ray absorption spectrum to help elucidate the lattice location of Cu in polycrystalline, thin-film CdTe solar cells. In particular, we have studied how the typical CdCl2 vapor treatment in dry air changes the local environment of the Cu in CdTe. We find the Cu absorption spectrum to be similar to that of Cu2Te in the as-deposited CdTe film but to convert to a spectrum similar to Cu2O environment after the vapor CdCl2 treatment.

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Authors and Affiliations

  1. Department of Physics and Astronomy, The University of Toledo, 43606, Ohio, USA

    Xiangxin Liu & Alvin D. Compaan

  2. Department of Biological, Chemical, and Physical Sciences, Illinois Institute of Technology, 60616, Chicago, IL, USA

    Nadia Leyarovska & Jeff Terry

  3. Department of Physics, University of Notre Dame, 46556, Notre Dame, IN, USA

    Jeff Terry

Authors
  1. Xiangxin Liu
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  2. Alvin D. Compaan
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  3. Nadia Leyarovska
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  4. Jeff Terry
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Liu, X., Compaan, A.D., Leyarovska, N. et al. Cu K-edge XAFS in CdTe before and after treatment with CdCl2. MRS Online Proceedings Library 763, 35 (2002). https://doi.org/10.1557/PROC-763-B3.5

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  • DOI: https://doi.org/10.1557/PROC-763-B3.5

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